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DCG420XB

ATOMIC™ 20V MAX* Extended Die Grinder (Tool Only)

A DEWALT 20V brushless cordless die grinder, primarily yellow and black in color, shown from the side on a white background.

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Product details

Complete metalworking applications in tight or narrow spaces with the ATOMIC™ 20V MAX* extended die grinder (battery and charger sold separately). Engineered for tough jobsites, the first battery-operated extended die grinder from DEWALT® ¹ is equipped with the DEWALT® perform and protect anti-rotation system to help maximize control. Featuring a 35% slimmer neck for ideal ergonomics², this grinder keeps productivity high with up to 20% more power than 0.5 HP rated pneumatic die grinders³. Delivering variable speed control, the ATOMIC™ 20V MAX* extended die grinder delivers untethered performance and pneumatic-like power without the hassle of hoses.

  • Help Maximize Control - Equipped with the DEWALT® PERFORM & PROTECT™ ANTI-ROTATION™ system
  • Brake Stops Wheel in Less Than 1 Second⁴ - Help maintain control after the ON/OFF trigger is released
  • 30% Smaller⁵ - Work in narrow spaces with a 35% slimmer neck²
  • Pneumatic-like Power - Up to 20% more power than 0.5 HP rated pneumatic die grinders³
  • Variable Speed Trigger - Variable speed mode select and up to 24,500 RPM (no-load)
  • Fast Wheel Changes - Spindle lock removes the need for multiple wrenches
  • Paddle Switch - Lock-off paddle and no lock-on
  • Forward Exhaust System - Help direct air away from the user
  • High Visibility - Bright LED
  • TOOL CONNECT Chip-Ready™ - Pair with the TOOL CONNECT™ Chip (sold separately) and TOOL CONNECT™ software⁶

Product Type
Die Grinder
Voltage
20V
Cordless or Corded
Cordless
Power Source
Cordless
Tool Only
Yes

  • (1) DCG420X ATOMIC COMPACT SERIES™ 20V MAX* Extended Die Grinder
  • (1) Wrench
  • (1) 1/4 in. Collet

  • 3 Year Limited Warranty, 1 Year Free Service, 90 Days Satisfaction Guaranteed

We take extensive measures to ensure all our products are made to the very highest standards and meet all relevant industry regulations.

Customer Support

* * - Maximum initial battery voltage (measured without a workload) is 20 volts. Nominal voltage is 18.

* ¹ - Based on product description.

* ² - Diameter vs. DCG426 Die Grinder.

* ³ - Based on MWO using DCBP034G battery (sold separately).

* ⁴ - On average, using 2-in cutting wheel (not included).

* ⁵ - Tool only, based on volume vs. DCG426B Die Grinder.

* ⁶ - Additional subscription charge and third party data charges may apply.

Downloads and manuals

Instruction Manual, Type 1
NA599856_DCG420X_T1_NA.278863.pdf
PDF
Exploded Diagram, Type 1
NA759626_DCG420x_T1.278844.svg
SVG
Exploded Diagram, Type 1
NA759626_DCG420X_T1_20260306.300188.svg
SVG
Exploded Diagram, Type 1
NA759626_DCG420X_T1_20260307.300189.svg
SVG

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A person wearing protective gear, including a face shield and gloves, uses a DEWALT tool to work on a metal pipe in an industrial environment with shelves filled with metal tubes in the background.
A person wearing work gloves uses a DEWALT cordless power tool to work on a metal structure in an industrial workshop.
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Pneumatic-Like Power

Keep productivity high with up to 20% more power than 0.5 HP rated pneumatic die grinders³.

A person wearing protective gear is using a DEWALT tool to work inside a large metal pipe, with a background of square metal tubes organized on shelves in an industrial setting.

30% Smaller⁵

Complete metalworking applications in tight or narrow spaces with an ergonomic design and a 35% slimmer neck².

A person wearing protective gear is using a DEWALT tool to work inside a large metal pipe, with a background of square metal tubes organized on shelves in an industrial setting.
Yellow graphic states battery and charger not included with product.

Bare tool notice

This item does not include a battery or charger. Compatible batteries and accessories can be found within the ATOMIC™ 20V MAX* system.

³ Based on MWO using DCBP034G battery (sold separately).

⁵ Tool only, based on volume vs. DCG426B Die Grinder.

² Diameter vs. DCG426 Die Grinder.

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